title: Summation of day lengths versus increasing day lengths as the external stimulus for gonadal recrudescence and fat deposition in migratory birds.
authors.forename: A
authors.initials: A
authors.lastname: WOLFSON
mesh_terms: D000818:Animals; D001717:Birds; D005223:Fats; D006066:Gonads / Q000502:physiology*; D009424:Nervous System Physiological Phenomena; D010829:Physiological Phenomena; D012008:Recurrence
chemical_list: D005223:Fats